Arcade question

I know that "pool hopping" is not allowed, but are you allowed to use an arcade at one resort if you're staying at another resort? I was thinking of taking the kids to the CR arcade while we wait for our ADR time at Chef Mickey's. Do you have to show a room key to get in or can anyone play?
Thanks for the help!

Any guest is allowed to use any arcade if a WDW Resort has one, so all you do is walk-in and purchase the card with the amount of points your kids can use. There is no need to show your room key, so just go there and have fun.